Doors and windows system having earthquake-resistant performance

ABSTRACT

A Door or window system having earthquake-resistant performance, comprising: a main frame having two vertical frame members that are separated so as to be mutually parallel to each other, and an upper frame member and a lower frame member connected to the upper and lower end portions of the vertical frame members; a plurality of pillar members that are separated from the vertical frame members and arranged side by side thereto; a support beam, which is fixed to the end portions of the pillar members, extends horizontally, and has both end portions separated from the vertical frame members; and a damper, which is fixed between the support beam and the upper frame member, or between the support beam and the lower frame member, receives a horizontal load applied from the exterior, and is plastically-deformed when yielding to a horizontal load that is more than the tolerated horizontal load.

TECHNICAL FIELD

The present invention relates to a door or window system havingearthquake-resistant performance.

BACKGROUND ART

A door or window system includes a variety of windows or doors installedto an opening, such as a window frame or doorway, to shut an inner spaceof a building from the outside. Such doors or windows are essential inlighting or ventilating the room in the building and are installed intoa quadrangular space, which is provided at a predetermined position of awall body when the building is constructed.

The kind, size, installation position, number, and the like of the dooror window are appropriately designed in consideration of loads appliedto the building as well as air-conditioning, keeping warmth, lighting inthe room, and the like. Since the door or window is generally installedto a wall body between columns, a vertical load, which the door orwindow cannot bear, is not applied to the door or window itself.Columns, bearing walls and the like serve to mainly support the verticalload of the building, and the door or window serves to connect theinterior and the exterior.

In the meantime, when a strong wind strikes a building or an earthquakeoccurs, a horizontal load is applied to the building. The horizontalload, which shakes the building side to side, makes the building easilydestroyed. Destruction of a building, bridge or the like when anearthquake occurs is mostly caused by the horizontal load.

Also, the aforementioned horizontal load is concentrated on a portion ofthe door or window of the building, so that the door or window is veryeasily destroyed. Thus, if the building is destroyed due to theearthquake, the wall body at which the door or window is positionedfirst collapses, and thus, people trapped in the interior cannot escape.

DISCLOSURE Technical Problem

The present invention is conceived to solve the aforementioned problems.An object of the present invention is to provide a door or window systemhaving earthquake-resistant performance, which is plastically deformedby a horizontal load and has stable hysteretic characteristics while ayield strength is continuously increased particularly during the plasticdeformation, thereby being capable of maintaining the door or windowsystem to be stable just before fracture; has a damper to absorbearthquake energy, thereby performing functions of preventing a buildingstructure from being damaged and improving earthquake-resistantperformance; and also, can be installed newly when the building isconstructed or installed at a place where an existing door or window isremoved because of having the same constructability as a general door orwindow system.

Technical Solution

According to the present invention for achieving the objects, there isprovided a door or window system having earthquake-resistantperformance, which includes: a quadrangular main frame mounted to aquadrangular space defined in a wall body of a building to install adoor or window to the main frame, the main frame having two verticalframe members vertically arranged and parallelly spaced apart from eachother, an upper frame member connected to upper ends of the verticalframe members, and a lower frame member connected to lower ends of thevertical frame members; a plurality of pillar members positioned insideof the main frame, the pillar members having ends fixed to the lowerframe member or the upper frame member and being in parallel with thevertical frame members to provide a door or window installation spacefor installing a window therebetween, the pillar members being spacedapart from the vertical frame members; a support beam fixed to the otherends of the pillar members and horizontally extending, the support beamhaving both ends spaced apart from the vertical frame members; and adamper fixed between the support beam and the upper frame member orbetween the support beam and the lower frame member, the damper beingreceived a horizontal load applied from the outside, the damper yieldingto a horizontal load larger than an allowable horizontal load and beingplastically deformed.

In addition, according to the present invention for achieving theobjects, there is provided a door or window system havingearthquake-resistant performance, which includes: a main frame mountedto a quadrangular space defined in a wall body of a building to installa door or window to the main frame, the main frame having two verticalframe members vertically arranged and parallelly spaced apart from eachother, an upper frame member connected to upper ends of the verticalframe members, a lower frame member connected to lower ends of thevertical frame members, and an intermediate frame member horizontallyarranged between the upper frame member and the lower frame member andconnecting both the vertical frame members to each other; a plurality ofpillar members vertically positioned inside of the main frame, thepillar members being fixed to the upper frame member or the lower framemember and extending toward the intermediate frame member to provide adoor or window installation space for installing a window therebetween,the pillar members being spaced apart from the vertical frame members;support beams fixed to extending ends of the pillar members and arrangedin parallel with the intermediate frame member, each of the supportbeams having both ends spaced apart from the vertical frame members; anddampers fixed between the support beams and the intermediate framemember, each of the dampers being received a horizontal load appliedfrom the outside, the damper yielding to a horizontal load larger thanan allowable horizontal load and being plastically deformed.

Also, the pillar members may comprise a plurality of upper pillarmembers fixed to the upper frame member and extending toward theintermediate frame member, and a plurality of lower pillar members fixedto the lower frame member and extending toward the intermediate framemember, the support beams may be fixed to the extending ends of theupper and lower pillar members and respectively positioned on top andbottom of the intermediate frame member, and the dampers may berespectively arranged between the intermediate frame member and therespective support beams.

Further, the damper may extend in a longitudinal direction of thesupport beam, have both widthwise ends fixed to the main frame and thesupport beam, and be a plate-shaped member having a plurality ofslot-shaped holes and having a predetermined thickness and width.

Furthermore, a plurality of the dampers may be arranged in parallelalong the longitudinal direction of the support beam, and an escapeprevention member for fixing the support beam to the main frame may befurther provided between the dampers.

Also, two or more of the dampers may be arranged side by side.

Further, the escape prevention member may be a plate-shaped memberhaving a predetermined thickness, which is arranged perpendicular to thedamper.

Advantageous Effects

A door or window system having earthquake-resistant performance of thepresent invention as configured above is plastically deformed by ahorizontal load and has stable hysteretic characteristics while a yieldstrength is continuously increased particularly during the plasticdeformation, thereby being capable of maintaining the door or windowsystem to be stable just before fracture; and also, can be installednewly when the building is constructed or installed at a place where anexisting door or window is removed because of having the sameconstructability as a general door or window system.

DESCRIPTION OF DRAWINGS

FIG. 1 is a view illustrating a door or window system havingearthquake-resistant performance according to one embodiment of thepresent invention.

FIG. 2 is a front view of the door or window system shown in FIG. 1.

FIG. 3 is a graph showing an analysis of an internal stress distributionusing FEM (Finite Element Method), which is one of numerical analyses,when a horizontal load is applied to the door or window system havingearthquake-resistant performance shown in FIG. 1 in an arrow direction Fshown in FIG. 2.

FIG. 4 is a view showing another example of the door or window systemhaving earthquake-resistant performance according to one embodiment ofthe present invention.

FIG. 5 is a view showing a further example of the door or window systemhaving earthquake-resistant performance according to one embodiment ofthe present invention.

FIG. 6 is a view showing a still further example of the door or windowsystem having earthquake-resistant performance according to oneembodiment of the present invention.

BEST MODE

Hereinafter, one embodiment according to the present invention will bedescribed in detail with reference to the accompanying drawings.

FIG. 1 is a view illustrating a door or window system 13 havingearthquake-resistant performance according to one embodiment of thepresent invention, and FIG. 2 is a front view of the door or windowsystem shown in FIG. 1.

As shown in the figures, the door or window system 13 according to thisembodiment comprises a main frame 15 mounted to an inner area of aquadrangular hole, which is formed in a framework 11 when a building isconstructed, three pillar members 23 provided inside of the main frame15, a support beam 19 horizontally fixed to an upper end of the pillarmembers 23, and a plurality of dampers 17 positioned on top of thesupport beam 19.

The main frame 15 takes the form of a quadrangular frame consisting oftwo vertical frame members 15 a arranged to be spaced apart from andparallel to each other, an upper frame member 15 b integrally formed atupper ends of the vertical frame members 15 a and horizontallyextending, and a lower frame member 15 c integrally connected to lowerends of the vertical frame members 15 a and parallel to the upper framemember 15 b. The vertical frame members 15 a may function as columns,and the upper frame member 15 b may function as a beam.

The pillar members 23, which are made to stand vertically with theirlower ends fixed to the lower frame member 15 c, are spaced apart fromeach other at regular intervals, so that door or window installationspaces 27 are provided between the pillar members 23. The door or windowinstallation spaces 27 are mounted with general windows 29,respectively.

In particular, the pillar members 23 at the left and right sides amongthe three pillar members 23 are respectively spaced apart from thevertical frame members 15 a, so that space portions 25 are definedbetween the pillar members 23 and the vertical frame members 15 a,respectively. Each of the space portions 25 may has a width of about 40mm to 50 mm although it may vary according to circumstance.

The space portions 25 are buffer regions provided so that the verticalframe members 15 a do not collide with the support beam 19 or the pillarmembers 23 when a horizontal load is applied to the upper frame member15 b in an arrow direction F. If there is not the space portions 25, thehorizontal load is exerted directly on the pillar members 23, therebymaking the pillar members 23 yield and be plastically deformed.

The window 29 mounted to the door or window installation space 27 is ageneral window, for example, including a fixed sash type or an openabletype. When the window 29 is a fixed sash type, the window 29 consists ofa quadrangular window frame 29 a fixed to the pillar members 23, thelower frame member 15 c and the support beam 19 and a glass panel 29 bfitted into the window frame 29 a. Also, the window 29 of an openabletype consists of the quadrangular window frame 29 a and a window sash 29c openably and closably installed into the window frame 29 a. The glasspanel 29 b may be naturally fitted into the window sash 29 c.

Also, although in this embodiment, the pillar member 23 takes the formof a plate having a predetermined width and thickness, the shape of thepillar member 23 may be modified in any degree according tocircumstance.

The support beam 19 fixed to the upper ends of the pillar members 23horizontally extends, and both ends of the support beam 19 arerespectively spaced apart from the vertical frame members 15 a. Spacesbetween both the ends of the support beam 19 and the vertical framemembers 15 a are also respectively included in the space portions 25.The support beam 19 is spaced apart from the upper frame member 15 b inparallel, and the plurality of dampers 17 are maintained between thesupport beam 19 and the upper frame member 15 b.

Each of the dampers 17 is a plate-shaped member, which has apredetermined width and thickness and extends in a longitudinaldirection of the support beam 19. The dampers 17 are made to verticallystand between the support beam 19 and the upper frame member 15 b, andboth widthwise ends of each damper 17 are respectively coupled to abottom side of the upper frame member 15 b and a top side of the supportbeam 19. In particular, the damper 17 is formed with a plurality ofholes 17 a. The plurality of dampers 17 are serially arranged along thelongitudinal direction of the support beam 19. The dampers 17 may beformed of the same material, preferably steel, as the main frame 15.

The hole 17 a is a slot-shaped hole, which vertically extends to beelongated, and improves a plastic deformability of the dampers 17. Thatis, when the horizontal load is applied to the upper frame member 15 bin the arrow direction F and then a shear force is exerted on thedampers 17, the dampers 17 are plastically deformed due to the shearforce. If there is not the holes 17 a, the dampers 17 are notplastically deformed, but for example, welded portions of upper andlower ends of the dampers 17 or other portions thereof will befractured. As described above, the dampers 17 are installed and appliedso that the dampers 17 are plastically deformed by the horizontal load,whereby for example even when an earthquake occurs, energy of theearthquake will be absorbed due to the plastic deformation of thedampers. A width w of the hole 17 a may vary according to circumstance.

Also, a plurality of escape prevention members 21 are positioned betweenthe support beam 19 and the upper frame member 15 b. The escapeprevention members 21, each of which is a plate having a predeterminedthickness, are fixed in a direction perpendicular to the dampers 17.Upper and lower ends of the escape prevention members 21 are welded andcoupled to the upper frame member 15 b and the support beam 19,respectively, thereby preventing the support beam 19 from moving in itswidthwise direction with respect to the upper frame member 15 b. Thatis, the escape prevention members 21 prevent the support beam 19 frommoving in the widthwise direction of the support beam 19 and thentumbling to the outside of the main frame 15.

The installation number or installation positions of the escapeprevention members 21 may also vary according to circumstance, and asshown in FIG. 1, the escape prevention members 21 may be positionedbetween the respective dampers 17 and at both the ends of the supportbeam 19.

Reference numeral 31 in FIG. 2 designates an epoxy layer. The epoxylayer 31 bonds the main frame 15 to inner sides of the framework 11 andat the same time functions as a buffer for blocking the propagation ofvibration.

FIG. 3 is a graph showing an analysis of an internal stress distributionin the door or window system 13 having earthquake-resistant performanceshown in FIG. 1 using FEM (Finite Element Method), which is one ofnumerical analyses, when the horizontal load is applied to the door orwindow system in the arrow direction F shown in FIG. 2.

Referring to FIG. 3, it can be seen that stress is concentrated on thedampers 17 and stress in an elastic range exists in the other portionsof the door or window system. The stress in an elastic range is a loadto restore an object to its original state when the load is removed fromthe object.

Since the stress is concentrated on the dampers 17 as described above,if a strong horizontal load caused by an earthquake is transmitted tothe door or window system 13, the dampers 17 are first plasticallydeformed and absorb energy of the earthquake, thereby being capable ofserving to prevent damage of the building structure as well as the dooror window system 13.

FIG. 4 is a view showing another example of the door or window system 13having earthquake-resistant performance according to one embodiment ofthe present invention.

Hereinafter, the same reference numerals as the aforementioned ones areused to designate the same members having the same function.

In the door or window system 13 shown in FIG. 4, the dampers 17 areserially arranged in pairs. The configuration and function of the damper17 itself is the same as the one shown in FIG. 1. Since the dampers 17are fixed in pairs side by side as described above, they can stronglybear the horizontal load applied from the outside. According tocircumstance, the dampers 17 may be arranged in sets of three or moreside by side.

FIG. 5 is a view showing a further example of the door or window systemhaving earthquake-resistant performance according to one embodiment ofthe present invention.

Referring to FIG. 5, it can be seen that the dampers 17 are fixed to atop side of the lower frame member 15 c. To this end, the upper ends ofthe pillar members 23 are fixed to the upper frame member 15 b andextend downward, and the support beam 19 is fixed to the lower ends ofthe pillar members 23.

The support beam 19 is arranged above the lower frame member 15 c in aparallel spaced relation, and the dampers 17 are positioned between thesupport beam 19 and the lower frame member 15 c. The dampers 17 have thesame functions as those shown in FIG. 1.

FIG. 6 is a view showing a still further example of the door or windowsystem having earthquake-resistant performance according to oneembodiment of the present invention.

As shown in the figure, in the door or window system 13 according to thestill further example, the main frame 15 further includes anintermediate frame member 33 between the upper frame member 15 b and thelower frame member 15 c. The intermediate frame member 33 has both endsfixed to the vertical frame members 15 a and is maintained in ahorizontal state.

Also, the plurality of dampers 17 and escape prevention members 21 arefixed to top and bottom sides of the intermediate frame member 33. Thedampers 17 and the escape prevention members 21 have the same functionsas those described above.

The support beam 19 is positioned on top of the dampers 17 and escapeprevention members 21 arranged on top of the intermediate frame member33, and a plurality of upper pillar members 23 a are positioned on topof the support beam 19.

The upper pillar members 23 a connect the upper frame member 15 b andthe support beam 19 to each other, and door or window installationspaces 27 are provided therebetween. The windows 29 are naturallyinstalled to the door or window installation spaces 27.

In addition, lower pillar members 23 b are fixed to an upper portion ofthe lower frame member 15 c. The lower pillar members 23 b are spacedapart from each other to provide door or window installation spaces 27therebetween, and the support beam 19, which is further provided inaddition to the aforementioned support beam 19, is supported at upperends of the lower pillar members 23 b. The support beam 19 is maintainedin a horizontal state while being supported by the lower pillar members23 b, and the dampers 17 and the escape prevention members 21 are heldbetween the support beam 19 and the intermediate frame member 33.

The dampers 17 fixed to the top and bottom sides of the intermediateframe member 33 are plastically deformed by the horizontal load appliedto the door or window system 13, particularly the intermediate framemember 33, to protect the door or window system.

Meanwhile, although the plate-shaped dampers 17 made of steel areemployed in this embodiment, the shape or kind of the dampers may bemodified in any degree as long as the dampers perform theiraforementioned functions. For example, an elastic damper, a viscoelasticdamper, a steel damper, an oil damper, a viscous damper, or the like maybe applied.

Although the present invention has been described in detail through thespecific embodiments, the present invention is not limited to theembodiments. It will be apparent that those skilled in the art can makevarious modifications and changes thereto within the scope of thetechnical spirit of the present invention.

1. A door or window system having earthquake-resistant performance,comprising: a quadrangular main frame mounted to a quadrangular spacedefined in a wall body of a building to install a door or window to themain frame, the main frame having two vertical frame members verticallyarranged and parallelly spaced apart from each other, an upper framemember connected to upper ends of the vertical frame members, and alower frame member connected to lower ends of the vertical framemembers; a plurality of pillar members positioned inside of the mainframe, the pillar members having ends fixed to the lower frame member orthe upper frame member and being in parallel with the vertical framemembers to provide a door or window installation space for installing awindow therebetween, the pillar members being spaced apart from thevertical frame members; a support beam fixed to the other ends of thepillar members and horizontally extending, the support beam having bothends spaced apart from the vertical frame members; and a damper fixedbetween the support beam and the upper frame member or between thesupport beam and the lower frame member, the damper being received ahorizontal load applied from the outside, the damper yielding to ahorizontal load larger than an allowable horizontal load and beingplastically deformed.
 2. A door or window system havingearthquake-resistant performance, comprising: a main frame mounted to aquadrangular space defined in a wall body of a building to install adoor or window to the main frame, the main frame having two verticalframe members vertically arranged and parallelly spaced apart from eachother, an upper frame member connected to upper ends of the verticalframe members, a lower frame member connected to lower ends of thevertical frame members, and an intermediate frame member horizontallyarranged between the upper frame member and the lower frame member andconnecting both the vertical frame members to each other; a plurality ofpillar members vertically positioned inside of the main frame, thepillar members being fixed to the upper frame member or the lower framemember and extending toward the intermediate frame member to provide adoor or window installation space for installing a window therebetween,the pillar members being spaced apart from the vertical frame members;support beams fixed to extending ends of the pillar members and arrangedin parallel with the intermediate frame member, each of the supportbeams having both ends spaced apart from the vertical frame members; anddampers fixed between the support beams and the intermediate framemember, each of the dampers being received a horizontal load appliedfrom the outside, the damper yielding to a horizontal load larger thanan allowable horizontal load and being plastically deformed.
 3. The dooror window system according to claim 2, wherein the pillar memberscomprise a plurality of upper pillar members fixed to the upper framemember and extending toward the intermediate frame member, and aplurality of lower pillar members fixed to the lower frame member andextending toward the intermediate frame member, the support beams arefixed to the extending ends of the upper and lower pillar members andrespectively positioned on top and bottom of the intermediate framemember, and the dampers are respectively arranged between theintermediate frame member and the respective support beams.
 4. The dooror window system according to claim 1, wherein the damper extends in alongitudinal direction of the support beam, has both widthwise endsfixed to the main frame and the support beam, and is a plate-shapedmember having a plurality of slot-shaped holes and having apredetermined thickness and width.
 5. The door or window systemaccording to claim 4, wherein a plurality of the dampers are arranged inparallel along the longitudinal direction of the support beam, and anescape prevention member for fixing the support beam to the main frameis further provided between the dampers.
 6. The door or window systemaccording to claim 5, wherein two or more of the dampers are arrangedside by side.
 7. The door or window system according to claim 5, whereinthe escape prevention member is a plate-shaped member having apredetermined thickness, which is arranged perpendicular to the damper.8. The door or window system according to claim 5, wherein the dampercomprises a steel damper, an oil damper, and a viscous damper.